I am so sorry for the loss of your husband and furbaby. I use frontline plus but I give it to her a day or two after the heartworm pill. I don't like giving her to much of anything at one time.
__________________ Mammadoodle to my Yorkiedoodle Barney and our crazy cat Ms. Sassy Pants.  RIP Audrey-Belle 
Within the heart of every stray lies the singular desire to be loved |